EP 0085650 B1 19870805 - APPARATUS FOR COATING PARTICLES,ESPECIALLY PHARMACEUTICAL TABLETS
Title (en)
APPARATUS FOR COATING PARTICLES,ESPECIALLY PHARMACEUTICAL TABLETS
Publication
Application
Priority
CH 55582 A 19820129
Abstract (en)
[origin: US4476804A] A process and apparatus for coating particles, particularly particles of medicinal drugs. The apparatus has a rotating drum provided with a perforated cylindrical center section. Particles to be coated are introduced into the interior of the drum and form a layer in a lower quadrant of the cylindrical section during rotation of the drum. A spraying device is located in the interior of the drum for coating the particles with an appropriate mixture or solution. A device is positioned adjacent the portion of the drum containing the particles for introducing gas through the perforations into the layer of particles so as to dry the particles. A device also is provided for removing gas from the drum through the perforations. The device for introducing gas can be separated from the device for removing gas by a central partition, with both devices being carried by a common support. Also, it is possible to introduce gas into a portion of the interior of the drum that is spaced from the layer of particles.
IPC 1-7
IPC 8 full level
B01J 2/14 (2006.01); A23G 3/26 (2006.01); A61J 3/00 (2006.01); A61J 3/06 (2006.01); B01J 2/00 (2006.01); B01J 2/12 (2006.01); B05D 1/02 (2006.01)
CPC (source: EP US)
A23G 3/26 (2013.01 - EP US); A61J 3/005 (2013.01 - EP US); B01J 2/006 (2013.01 - EP); B01J 2/12 (2013.01 - EP); B05D 1/02 (2013.01 - EP US)
Citation (examination)
- US 3357398 A 19671212 - GROSS HERBERT M
- US 3573966 A 19710406 - HOSTETLER B VAN
- DE 1225035 B 19660915 - PIETRO PELLEGRINI
- US 2805801 A 19570910 - WILLIAM JACOBS, et al
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0085650 A1 19830810; EP 0085650 B1 19870805; CH 656077 A5 19860613; DE 3372848 D1 19870910; JP H0450852 B2 19920817; JP S58137437 A 19830815; US 4476804 A 19841016
DOCDB simple family (application)
EP 83810023 A 19830120; CH 55582 A 19820129; DE 3372848 T 19830120; JP 1257483 A 19830128; US 46208983 A 19830128